Sash-lock.



UNITED STATES PATENT OEEICE.

HENRY L. LOOMIS, OF BLOOMINGTON, ILLINOIS.

SASH-LOCK.

SPECIFICATION forming part 0f Letters Patent N0. 679,464, dated July 30,1901. Application filed May 7, 1900. Serial No. 15,801. (No model.)

To @ZZ whom, it may concern:

Be it known that I, HENRY L. LOOMIS, a citizen of the United States,residing at Bloomington, in the county of McLean and State of Illinois,have invented certain new and use# ful Improvements in Sash-Locks; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention is designed to providea simple and effective lock forsecuring the sash of a window either' when closed or opened t0 anydesired extent and which is adapted to be readily applied to any styleof Window whether single or double lights.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result reference is to be had to the appended descriptionand drawings hereto attached.

Vhile the essential and characteristic features of the invention arenecessarily susceptible of inodiiication, still the preferred embodimentof the invention is illustrated in the accompanying drawings, in which-Figure l is a front view of a window, showing the invention applied.Fig. 2 is a detail vertical section. Fig. 3 isa perspective view of thelock.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The lock comprises a base or frame l and a lock-bolt 2, the latterprovided at one end with a thumb-button 3 and having its opposite endportion pointed, as shown at 4, and provided with screw'threads 5 ashort distance from the pointed extremity. In end elevation the base orframe l is of tapering form, the wings or side pieces sloping outwardlyand downwardly upon curved lines and provided at their lower edges withopenings 6 to receive the fastenings by means of which the lock issecured to the top rail of the sash. The crest of the frame consists ofa sleeve 7, in which the lock-bolt 2 is rotatably mounted, and thissleeve is cut away at an intermediate point, as shown at 8, to provideclearance for a pin 9, secured in an opening formed transversely of thelock-bolt 2, said pin constituting a stop to prevent outwarddisplacement of the lock-bolt and limit its movement when engaged withthe metal strip 10, applied to the central upright of the topmost sashor to a side stile of said sash.

The frame or base l is formed of a blank of sheetmetal having acentrally-disposed rectangular opening. This blank is doubled uponitself in line with the opening to form a sleeve in the fold to receivethe lock-bolt 2. The folded portions adjacent the sleeve are broughttogether, and thence curve outwardly in opposite directions andterminate in base portions in the saine plane and apertured to receivethe fastenings G. The opening in the blank is of a size to provide thecut-away portion 8, which completely intercepts the end portions of thesleeve 7, so as to allow the free rotation of the pin 9 when turning thelockbolt to engage or disengage it from the strip l0. This opening alsofacilitates the folding of the blank when imparting the required shapethereto.

The metal strip 10 is provided at intervals in its length with threadedopenings l1 to receive the screw-threaded end 5 of the lockbolt and isadapted to be secured to an upright of the topmost sash. In the event ofthe sash containing two lights the metal strip l0 is secured to thecentral strip or upright, and should the sash contain a single lightonly the strip l0 must be applied to a side stile or can be duplicatedand applied to both side stiles.

W'hen the sashes are closed, they are prevented from being opened fromthe outside by turning the lock-bolt so as to engage the threaded end 5with the lowermost opening ll. By having the extremity of the lock-boltpointed, as shown at 4, it will readily enter the opening 1l andcentralize the bolt with reference thereto. The parts are soproportioned and disposed that when the projecting end portions of thepin 9 engage with the inner end of the innermost portion of the sleeve 7the point of the tapering portion twill just clear the upright of thesash and prevent injury thereto. When the lock-bolt is screwed into thestrip 10, the meeting-rails of the upper and lower sashes are drawntogether and rattling thereof is prevented in windy ICO weather. Forventilation the lower sash can be raised or I[he upper sash lowered, orboth, as required, and the sashes can be relatively secured by engagingthe lock-bolt with the desired opening 11 of the strip 10, as will bereadily understood.

Having thus described the invention, whatis claimed as new is- In asash-lock comprising a metal strip proitself in line with the saidopening to provide a sleeve to receive the aforesaid lock-bolt andhaving the folded portions brought together adjacent the sleeve andthence curved outwardly in opposite directions, and having the baseportions apertured to receive fastenings, the said opening completelyintercepting the end portions of the sleeve and forminga cutawayportion, and a pin applied to the lockbolt and projecting into the saidcut-away part of the sleeve and adapted to hold the lock-bolt in placeand limit its movements, substantially as specified.

In testimony whereof I afx my signature in presence of two witnesses. I

HENRY L. LOOMIS. [L. 3.]` Witnesses:

Gmo. A. LE BEAU, F. B. CAPEN.

